Brick-pressing machine.



H. K. KING.

BRICK PRESSING MACHINE. APPLICATION FILED MAB. 1, 1907.

1,041,805. Patented 0ct.22, 1912.

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.H. K. KING. BRICK PRESSING MACHINE. APPLIOATION FILED MAR. 1, 1907.

' 1,041,805. Patented Oct. 22, 1912.

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APPLICATION FILED MAR. 1, 190-7.

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H. K. KING.

BRICK PRESSING MACHINE.

APPLICATION FILED MAR. 1, 1907.

1,041,805., Patented 0013221912.

6 SHEETSSHEET 6.

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WITNESSES UNITED STATES PATENT OFFICE.

HOWARD K. KING, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T0 CHAMBERSBROTHERS COMPANY, A CORPORATION OF PENNSYLVANIA.

BRI CK-PRESSING MACHINE.

To all whom it may concern:

Be it known that I, HOWARD K. KING, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented a new and useful Brick-Pressing Machine, ofwhich the following is a specification.

My invention relates to improvements 1n brick pressing machines.

My object is to provide means for presslng clots of clay or othermaterials expedltiously, and with maximum efficiency.

My invention comprises means whereby the acting plungers and thecharging and discharging mechanism are all actuatedby the samecontinuously operating rotating element, said mechanisms operatingrelatively and capable of relative adjustment with respect to eachother.

My .invention also comprises improved means for simultaneously chargingthe clots to the plungers and discharging the compressed brickstherefrom.

My invention also comprises improved means for adjusting the range oftravel of one of each couple of plungers.

My invention also comprises improved means whereby the lower plunger isgivena slight but powerful movement upward just as the upper plunger iscompleting its downward movement to compress the brick upon both sidessimultaneously.

My invention also comprises means for adjusting the range of travel ofthe clot charging mechanism and also independent means for adjusting theinitial position of the same.

My invention. also comprises means for storing and distributing oil tothe surfaces of the clots.

My invention also comprises various improvements in details ofconstruction.

Referring to the drawings :F igure 1 is a front elevation. Fig. 2 is avertical section on lines 2, 2 of Fig. 1. Fig.- 3 is a horizontalsection on lines 3, 3 of Fig. 2. Fig. 4 is a plan view of the togglemechanism. Fig. 5 is a plan view of a portion of the mechanism forcharging the clots and discharging the finished bricks, part beingbroken away to show the structure beneath. Fig. 6 is a vertical sectionof the structureshown in Fig. 5, Fig. 7 is a detail'of a portion of themechanism for operating the lower plunger.

Specification of Letters Patent.

Patented Oct. 22,1912.

Application filed March 1, 1907. Serial No. 360,016.

Fig. 8 is a similar View showing the parts in dliferent positions. Fig.9 is a fragmentary plan view showing the clots charging and. brickdischarging mechanism in the initial position. Fig. 10 is a detail viewsimilar to Figs. 7 and 8 showing the operating parts in still differentpositions. Fig. 11 is a sectional portion of the mechanism shown in Fig.10. Fig. 12 is a sectional view of the brick and plungers inapproximately the relative'positions at which the compression .of thebrick begins.

Similar numerals refer to similar parts throughout the several views.

Referring to Fig. 2, the mold boxes 15 are suitably supported on thestationary framework 43 of the machine. The, hollow plungers 16 aremounted on the cross beam 17 suspended on the four vertical rods 18. Itis to be noted that there are two mold boxes shown in the machineillustrated in the drawings, each provided with a pair of oppositelyacting reciprocating plungers. These two pairs of plungers are actuatedsimultaneously from the same source of power. The adjustable connectingrods 26 of the upper plungers 33 are connected by the gear wheels 28 toinsure a similar adjustment of the range of movement of said plungers.With this explanation it will be obvious that the descriptlon of onemold box and its pair of cooperating plungers and the actuatingmechanism therefor will apply to either mold box and its cooperatingplungers. The rods 18 are movably connected with members 19. In members19 are journaled the eccentric portions 73 of the toggle member 21,which toggle member 21 is journaled at 20 in the stationary framework 43of the machine. It will thus be obvious that the eccentric portions 73cooperate with rods 18 in the support of members 19. The arms 22 oftoggle member 21 are connected by the toggle pin 24 with the pitman 23,which pitman 23 is mounted on the middle of the crank shaft 34. Thecrank shaft 34 is provided with the gear wheel 35, which is driven bythe pinion 36, mounted on shaft 37 upon which is also mounted the pulley38, which is adapted to be driven from any suitable source of power.Connected with the toggle pin 24, is the other toggle ele ment, being acomposite connecting rod '26, which comprises two threaded splltsleeves,

. which is journaled in the stationary framefeed bar 44 and adjustablysecured on said of the feed bar 44 is mounted the cross head sprocketwheel 59 through chain 60 and each threaded sleeve provided with a spliti journal box and a connecting arm, intermediate member 27, providedwith a right hand thread at one end and a left hand thread at the otherend for cotiperating with said threaded sleeves to adjust the length 1of said connecting rod 26. As above stated, the gear wheels 28 mountedon intermediate members 27 are coupled together to insure equaladjustment of each connecting rod 26. The clamp screws 29 operating inthe threaded sleeves are adapted to tighten up said sleeves to preventmovement of member 27, when the proper adjustment is obtained. Thisconnecting rod 26 which, as above stated, is connectedat one end withtoggle pin 24, is connected at the other end with cross head 30, by thecross head pin 31. The cross head 30 is adapted to move in the verticalways 32 provided in the stationary framework of the machine. To thecross head 30 is secured by bolts or other suitable means, the upperplunger 33. Also mounted on the crank shaft 34 is the bifurcated pitman39, having its other end connected with the rock arm 40 by 'pin 41. Therock arm 40 is mounted, at its upper end, on shaft 42,

work 43. The lower end of arm 40 is pivotally connected with the feedbar 44 by the pin 45. Thesaid lower end of arm 40 is provided with threeapertures 46, for adjustment of length of stroke of the feed bar. Theblock 47 to which arm 40 is actually secured, is movably mounted on thefeed bar by the nuts 48. To the outer end 49, pivotally mounted to allowfor the rocking motion imparted to the feed bar by rock arm 40. It isprovided with a groove adapted to slide on the T-bar 50. This cross head49 is provided with the two oppositely extending flat faces 51projecting at right angles with the longitudinal extensionof the feedbar 44. Pivotally mounted on the feed bar 44 are the members 52 whichare controlled by the rods 53 which are actuated by the springs 54. Thecarrying or off-bearing belt 55 is mounted on the pulleys 56 and 57 andthe supplemental supporting rollers 58. The pulley 57 'is actuatedthrough the sprocket wheel 61, which is mounted on the hub of gear 62which is driven by gear 63 on shaft 37. The cam members 64 are rigidlysecured to the rods 18 and are provided with cam faces 65 and 66 adaptedto cooperate with the rollers 25. The beams 67 are secured to the upperends of rods 18. The beams 68 are slidably mounted on the rods 18.'Between beams 67 and 68 are mounted the springs 69. The bars 70 connectthe rods 18 and normally rest on shoulders of said rods as shown in Fig.8. The

through pitman 23.

purpose of bars 70 is to limit the downward movement on rods 18 of beams68. Bars '70 also cotiperate in maintaining the rods 18 in the requiredrelative position. A similar purpose is also served by the cam member64.

The operation of my device is as follows :The clots 80 as indicated indotted lines in. Fig. 9 are placed upon the feed table 71 in front ofthe cross head 49, when said cross head 49 is in the initial position asshown in Fig. 9. The clots are notonly placed in front of the cross head49 and close against the same, but also close against the sides of thefeed bar 44and upon the forward movement of the feed bar 44 the clotsarebrought into true position upon the plungers 16'free of the marginsof the mold boxes 15. The said feed bar is operated by the arm 40 andthe crank34 through the pitman 39. The arm 40 has a slow reciprocatingmotion, relative to the operation of the other parts of the machine. Itwill be understood that motion is communicated by the same crank 34 tothe plungers 16 and 33. The upper plunger is moved by means of a toggleformed by toggle member 22, andconnecting rod 26 actuated by crank 34 Atthe same time and by the same movement of the crank 34, which causes thedownward actuation of plunger 33, the two rollers 25 on toggle pin 24coact with the cam faces 65 and 66 of the members 64 to cause thedownward movement of rods 18 and cross beam 17 and the plungers 16carried thereby, until the projections '7 2 encounter the upper sides ofmembers 19. At the instant of engagement "of 72 and 19 the rollers 25clear the faces 65 and 66 as shown in Fig. 10. The movement tending tobring the arm 22 of toggle member 21 into alinement with the connectingrod 26 causes the upward actuation of members 19 due to the rotation ofthe eccentries 73 therein. From this it results that at the ending ofthe toggle movement, the members 19. being in engagement withtheprojections 7 2 of members 68 cause the upward movement of rods 18and consequently an upward movement of the lower plunger 16. This upwardmovement takes place simultaneously with the ending of the clownwardmovement of the plungers 33 so that a simultaneous final compression ofthe brick upon both faces is secured. The compression springs 69operating between members 67 and 68 serve simply to relieve the strainin case there should be a surplus of clay in the brick. i

The parts are arranged, proportioned and operated so that the plungers16 move downwardly sufilciently to carry the clots entirely in the moldboxes 15 before the plumgers 33 engage therewith, as indicated in Fig.12. It is to be understood that plungers 33 continue to descendtraveling slightly 1,0a1,soa

faster than plungers 16 so as to cotiperate with plungers 16 incompressing the brick toward the end of its downward movement. Thecontinued rotation of crank member 34 causes the further actuation ofthe toggle and the cam member to return the plungers to the initialposition. Plungers 16 are brought with their top surfaces level with thetop surfaces of the mold boxes 15, while plungers 33 have a continuedupward movement suflicient to. clear them from the finished brick onsaid plungers 16. Simultaneously with the downward movement of theplungers above described, the feed bar 44 is moved backward between thesaid plungers 33, now in the depressed position. The spring actuatedarms 52 engaging the said plungers 33, owing to the yielding of thespring pressed rods 53, will fold within the feed bar structure 44 andslide past said plungers 33, after which they will be returned to normalposition by said spring controlled rods 53. The wings 52 and cross head51 will now assume the initial position as shown in Fig. 9. In the nextforward movement of feed bar 44, the wings 52 will discharge thecompressed bricks from the plungers 16 onto the carrying-off belt 55,while the cross head 49 will deliver two more clots to plungers 1.6 asabove described.

I roller 25 is in engagement with said end of cam surface 65.

The operation of the feed bar 44 is so related to the plungers 16 thatthe discharge of the bricks from the plungers 16 is completed, or welladvanced, before the top surfaces of the plungers descend below thelevel of the top of the mold boxes 15, while the movement of the newclots onto the plungers 16 is completed, or well advanced, before thetop surfaces of said plungers have descended below the level of the topof mold boxes 15.

It is'to be understood that while I show the wings 52 as a convenientmeans for discharging the compressed bricks onto the carrying-off belt55, I do not limit my invention I to this specific device. In some casesthe movement of the clots 80 onto the plungers 16 will serve to removethe bricks therefrom onto the carrying-off belt 55; but where the bricksare not sufficiently stiff to prevent being marred, it is desirable tohave some positive mechanical means for removing the pressed bricksindependently of the clots.

' It is to be noted that the parts are assembled, related and operatedto secure the maximum efficiency, with the exertion of minimum of motivepower. The maximum of compressing power is required toward the end ofthe downward stroke of plungers 33, and at the ending of the compressionof the clots. This is when the toggle elements 22 and 26 are approachingthe straight line and when the leverage which can be exerted thereon bythe thrust of pitman 23 is greatest. It therefore follows that the verygreatest power that can be eX- erted upon plungers 33 fro-m a constantmotive force is just as the said toggle elements approach the straightline. It is also to be noted that at the same moment that the plungers33 are exerting their greatest power, the plungers 16 are completingtheir upward stroke, caused by themovement of eccentrics 73 in members19. This also takes place when toggle arms 22 approach a straight linewith connecting rods 26 and also approach a position at right angleswith the thrust of-pitman 23. So that the movement of the eccentrics 73cause the upward controlled by the usual hand valves. and

which drip the oil onto the table 71 and the oil rollers 78.

What I claim is 1. In a brick pressing machine, the combination ofcoiiperating plungers, a toggle, having its fulcrum mounted in theframework of the machine directly operating on one plunger, one arm ofsaid toggle being pivotally connected with said fulcrum, movablysupported slide rods for supporting the other plunger, a roller on theknee of the toggle and a coiiperating'cam-way connected with the sliderods for raising and lowering said last mentioned plunger.

2. In a brick pressing machine, the combination of cotiperatingplunger-s, a toggle directly operating on one plunger, cam meansoperated by the knee of the toggle for operating the other plunger, andan eccentric at the fulcrum of the toggle journaled in a sliding boxadapted to engage the supporting structure of said last mentionedplunger.

3. In a brick pressing machine, the-combination of a stationaryframework, cooperating plungers, a toggle operating directly on oneplunger, supporting rods for the other plunger, slidably secured in thestationary framework and operatively connected with the knee of thetoggle, a movable member connected with the slide rod and having anindependent limited movement with respect thereto, said mot'able memberhaving an eccentric journaled therein, as and for the purpose specified.

4. In a brick pressing machine, the combination of a stationaryframework, cooperating plungers movably connected therewith, a toggle,having its fulcrum mounted in the framework of the machine actingdirectly upon one plunger, one arm of said toggle being connected withsaid fulcrum, a roller at the knee of the toggle, a supporting frame forthe other plunger movably connected with the stationary framework, saidsupporting-frame being provided with a cam-shaped channel or way .forcooperating with the roller during a portion of the movement of thetoggle to cause the upward and downward actuation of said last mentionedplunger.

5. In a brick pressing machine, the combination of a stationarytframework, cooperating plungers movably connected therewith, a toggledirectly operating on one.

plunger, a projection at the vknee of the toggle, a movable supportingframe for the other plunger, provided with a cam-shaped channel or wayadapted to cooperate with the projection at the knee of the toggleduring part of the movement of the toggle, an eccentric integral withand adjacent the journal of the fulcrum of the toggle and a journal boxfor said eccentric connected with the movable supporting frame of theplunger and having a limited independent movement therewith, the partsso proportioned and adjusted that the eccentric will cause a movement ofthe movable supporting frame after the projection on the knuckle of thetoggle is free from its cooperating channel.

6. In a brick pressing machine, the combination of cooperating plungers,a toggle directly connected with one plunger, having a wheel orprojection at its knee, cams connected with the supporting structure ofthe other plunger for cooperating with the wheel or projection, asliding box having operative relationship with said last mentionedplunger, an eccentric on the fulcrum of the toggle, journaled in saidsliding box, the parts so proportioned that the eccentric actuationshall be independent of the cam actuation.

7. In a brick pressing machine, the combination of cooperating plungers,a plurality of toggles for operating the same, means for varying thelength of an arm of each toggle, and means for coupling the severaladjusting means for securing an equal adjustment of all toggles.

8. In a brick pressing machine, the combination of a stationaryframework, a mold box supported thereby, cooperating plungers movablyconnected therewith, a toggle for operating one plunger, a cam andcooperating projection connected with the knee of the toggle and ajournal box and cooperating eccentric connected at the fulcrum of thetoggle for causing and controlling the acturoller at the knee of thetoggle for cooperating with the cam, and an eccentric, workingindependently of the roller and cam, for causing a final movement ofsaid plunger toward the first mentioned plunger.

10. In a brick pressing machine,- the com-. bination of a mold box,cooperating plungers, roller and cam means for actuating one plunger ineither direction and an eccentric, working independently of the rollerand cam, for actuating the plunger in a direction opposite to thatimmediately caused by the roller and cam.

11. In a brick pressing machine, the combination of a mold box,cooperating plungers, a reciprocating member for feeding the clots tothe mold box and discharging the bricks therefrom, said dischargingmeans comprising a spring controlled arm adapted to encounter one of theplungers in the forward movement and to fold past the same and thenassume the operative position, and means for operating said plungers andreciprocating member relatively.

12. In a brick pressing machine, the combination of a mold box,cooperating plungers, a toggle for operating one plunger, cam means foroperating the other plunger, the members of the toggle adaptedtoapproach alinement toward the end of the compressing movement of theplunger actuated thereby, and an eccentric connected with a toggleelement and operating independently of the cam means for reversing themovement of the other plunger, as said toggle ele ments approachalinement, so as to secure the maximum force exerted by said plungersand roller connection with the knee of the toggle and an eccentricconnection at the fulcrum thereof, a crank shaft journaled in the uppermiddle portion of the stationary framework and a pitman connectionbetween the crank-thereof and the toggle.

14. In a brick pressing machine, the combination of a stationaryframework, a mold box supported thereby, cooperating plungers movablyconnected therewith, a toggle foractuating one plunger, a movable frame-Work for the other plunger having a cam and roller connection with theknee oft-he toggle and an eccentric connection at the fulcrum thereof, arock arm connected with the stationary framework having a reciproeatingfeed rod connected at its free end, a crank shaft journaled in the uppermiddle portion of the stationary framework, said crank thereof beingcommon to and operatively connected with the toggle and the rock arm.

15. In abrick pressing machine, the combination of a mold box,cooperating plungers and operatin means therefor, one of said plungershaving a dwell in a position substantially flush-with the top of themold box, and a continuously operated reciprocating member for feedingthe clots to the mold box and discharging the bricks therefrom, saidreciprocating member provided with projections adapted to engage thebricks upon the reciprocation of said member in one direction and toassume an inoperative position upon the reciprocation of said mem- 3 berin another direction;

HOWARD K. KING. Witnesses:

MAE HOFMANN, HOWARD S. OKIE.

